Posted: 4/3/2012 12:36:01 PM EDT
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I need to adjust the sights on my USP 45 –– I'll post pics. it looks like someone had a wicked bad habit of pulling to the right when they fired - the rear sight is adjusted quite far to the left, not zeroed, by the look of it. I've been looking at the slide/sight, and I have no idea how to adjust it, aside from brute force –– and I don't want to break anything. do you guys know any tricks to adjust it?
Shooting supported the bullet hits like this: (X is the bullet strike, please forgive the ASCII art) (supposed to represent the sight posts and bullet strike at 15 yds) |__|__| X I know a lot of the time a low left strike is caused by bad trigger pull on the part of the shooter –– this isn't the case here. I'm a good shooter with good habits, I promise! |
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Let me get this straight: the rear sight is drifted to the left of center, and your point of impact is also to the left.
If that's correct, move your rear sight to the right. Either get access to a USP sight adjustment tool or a universal sight adjustment tool. If you can't do either, you can use a hammer and a punch. Get the slide off the gun and place it into a vise (well padded for protection of the finish). Mark the starting position of the sight with a pencil for reference. Try centering the rear sight and then take some bench-rested shots. If it's still off a bit, make some small adjustments until it's on. ETA: BTW, this all assumes that your front sight is centered. If not, that's your first mission. |
new and improved... with pics!
How much does it usually cost to get one's sights adjusted by a gunsmith? I can't rationalize spending $100+ on the sight adjustment tool... also, where would I rest the punch? if you can make it out in the pictures, it's got angled sides –– it seems to me that I would tear the hell out of the finish, or have to put the punch at an angle to the sight against the opposite sight post and risk breaking one off. Suggestions? |
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Quoted:
new and improved... with pics! http://i281.photobucket.com/albums/kk232/lechambers/2081.jpg http://i281.photobucket.com/albums/kk232/lechambers/2080.jpg How much does it usually cost to get one's sights adjusted by a gunsmith? I can't rationalize spending $100+ on the sight adjustment tool... also, where would I rest the punch? if you can make it out in the pictures, it's got angled sides –– it seems to me that I would tear the hell out of the finish, or have to put the punch at an angle to the sight against the opposite sight post and risk breaking one off. Suggestions? $25 for a gunsmith when I had a handgun done. So I then took the plunge and bought a sight pusher. I have used it enough to pay for itself. |
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Move the rear sight back to center and I bet you will be zeroed. Also remember that HK uses a cover up hold, not a 6:00 hold. Put the dot where you want the bullet to hit, not under it, and you will find that it will be zeroed. Most times when people complain of HKs shooting low is because they hold like the would a rifle or most pistols, wanting the bullet to strike at the top of the front sight. And this is one reason I switch out all my HK shooters to adjustable sights. I absolutely hate having to cover my target with my front sight.
Use a brass punch on the dovetail. That area is flat. It will leave a brass mark but a little CR-10 or other copper remover on a Q-Tip will remove it. |
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Quoted:
Move the rear sight back to center and I bet you will be zeroed. Also remember that HK uses a cover up hold, not a 6:00 hold. Put the dot where you want the bullet to hit, not under it, and you will find that it will be zeroed. Most times when people complain of HKs shooting low is because they hold like the would a rifle or most pistols, wanting the bullet to strike at the top of the front sight. And this is one reason I switch out all my HK shooters to adjustable sights. I absolutely hate having to cover my target with my front sight. Use a brass punch on the dovetail. That area is flat. It will leave a brass mark but a little CR-10 or other copper remover on a Q-Tip will remove it. I agree with the above. If you dont have the sight tool, you can use the brass punch method, a good vise and gunsmith hammer. This is how I changed my USP sights to the Heine. It will leave a brass mark, but can be cleaned up. Also, invest in a laser boresighter that will fit your handgun barrel. The $39 one from cabelas worked well for me, at least to get your sights centered on paper if you cant get to the range right away. 
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